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Wolf Schweitzer
  • Male
  • ZUERICH
  • Switzerland
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Towards a new wrist for cable controlled arms
1 Reply

Started this discussion. Last reply by Wolf Schweitzer Mar 4.

Tolerances
3 Replies

Started this discussion. Last reply by Wolf Schweitzer Jan 5.

 

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Latest Activity

Dedicated to projects improving the design of traditional body-powered prosthetic terminal device designs.
November 13
Wolf Schweitzer added a blog post
General situation: I have a long arm stump and require a wiggle free and if possible service free quick release wrist that features a hollow center area (which is where my pin / pin ock takes up space). Road map: http://www.swisswuff.ch/tech...
October 31
GREAT POST
September 4
August 27
August 27
Michael Y. and Wolf Schweitzer are now friends
August 27
Wolf Schweitzer added a blog post
New rant: http://www.swisswuff.ch/tech/?p=205 The Fondation de la Haute Horlogerie is an association that represents brands such as Rolex, IWC, Breitling, Jaeger-LeCoultre, Hublot, Audemars Piguet or Concord. They now use the following respectle...
July 16
Swimsuit performance of rather simple technical matter (soak fabric with silicone or latex) for horrendous prices are good business *only* if they offer a substantial advantage. That advantage is the sales argument (for the manufacturer) and the r...
July 6

Profile Information

What has brought you to Open Prosthetics (check all that apply)?
Amputee
If an amputee, what type (not required)?
Right Arm Below Elbow
I'm interested in
Helping with projects, Getting help, Learning more
Website:
http://www.swisswuff.ch/

Wolf Schweitzer's Blog

Wolf Schweitzer

Mechanical wrist update

General situation:

I have a long arm stump and require a wiggle free and if possible service free quick release wrist that features a hollow center area (which is where my pin / pin lock takes up space).




Road map:

http://www.swisswuff.ch/tech/?p=158

The first version (crown type lock) was extremely simple, it was manufactured very fast and worked very well once one got used to the unique type of lock. I wore that Feb 09 to now and had no p… Continue

Posted on October 31, 2009 at 1:00pm —

Wolf Schweitzer

Swiss watch industry going overboard with negative disability stereotyping



New rant:

http://www.swisswuff.ch/tech/?p=205

The Fondation de la Haute Horlogerie is an association that represents brands such as Rolex, IWC, Breitling, Jaeger-LeCoultre, Hublot, Audemars Piguet or Concord. T… Continue

Posted on July 16, 2009 at 6:00am —

Wolf Schweitzer

How to build a prosthetic socket

Interesting almost step wise instruction PDF by Otto Bock on how to cast and how to laminate a socket:

www.ottobock.se/cps/rde/xbcr/ob_com_de/ti_646t3_dynamic_arm_d_gb.pdf

Maybe best to download and store this before they stop to make it available for everybody.

Posted on June 22, 2009 at 12:36pm —

Comment Wall (4 comments)

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At 2:22pm on August 27, 2009, Michael Y. said…
hey hows it going, just wondering what your thoughts are on how bionic arms should be controlled?
At 1:27pm on November 20, 2008, kat andersen said…
Just writing to say 'hey'! I see you are online now. Kat :-)
At 4:30am on June 20, 2008, Wolf Schweitzer said…
I got my prosthesis. Preliminary socket, Ossur liner, Otto Bock 2-way-hand, Otto Bock standard hook, harness et cetera.

I put it on. I use the Otto Bock hand. Not two minutes after testing it (I grabbed a jacket) the hand locks down for good. The situation is interesting as it reminds me of a James Bond movie. But it does not unlock. I pull the cable. I pull it so that the word "pull" deserves the name. I'm a stringy guy. The Otto Bock nylon cable metal mount tears out, dismanteling the cable over a certain length.

The orthopedic technician has Otto Bock check the hand. As the nylon string is a general flaw that is not remedied by using more nylon, I go get myself the material to fix it myself:

http://picasaweb.google.ch/swisswuff/Arm2

Alright. Now I am testing the prosthesis.
At 12:58pm on May 27, 2008, Sean McHugh said…
Hey Wolf, welcome to the group.
 
 

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